Companies House data with websites: what are your options?
The Companies House register is free, official and unrestricted — and it contains no website field at all. Not in the bulk download, not in the API. If your prospecting, TAM or territory work needs to know which UK companies actually trade and where to research them, you have to add websites yourself. This page walks through every realistic way to do that, including the free ones.
Details of the free Companies House products and third-party options below were checked in July 2026.
What the free register gives you — and what it doesn't
The Free Company Data Product is a monthly CSV snapshot of every live UK company: name, number, registered address, SIC codes, incorporation date and accounts dates. It is genuinely free, with no usage restrictions, and for a raw list of registered companies it is the right answer. What it lacks is everything that tells you whether a company is worth approaching: no website, no distinction between a trading business and a dormant shell, self-reported and often stale SIC codes, and a multi-gigabyte file that needs engineering before you can use it at all.
Your options, honestly compared
| Route | Cost (as of July 2026) | What you get | The catch |
|---|---|---|---|
| Companies House bulk data, as-is | Free | Every live UK company, official register fields | No websites, no trading signals; multi-GB CSV to engineer |
| DIY matching (search engines + spreadsheet) | Free, but your hours | Websites for a small, hand-checked list | Name collisions and trading-name mismatches make guessed domains unreliable; doesn't scale past a few hundred companies |
| Fiverr / Apify scraper gigs | ~£5–50 per job | Cheap raw Companies House extracts | Mostly re-selling the free register; website columns, where offered, are typically guessed rather than verified |
| Research platforms (Endole and similar) | ~£25–39/month | In-browser company research, some digital fields | Exports rationed (roughly 1,000 rows/month); website coverage limited — see our Endole comparison |
| Enterprise data (Experian and similar) | Quote-only | Broad business universe with account management | No public pricing; built for enterprise contracts |
| Firmfeed | £49–£99 datasets; custom from £149 | Register data with verified websites, match confidence and live buying signals, as an uncapped CSV | Company-level only — no personal contacts, no research platform, by design |
Why "verified" is the word that matters
Anyone can bolt a guessed domain onto a company list — take the registered name, strip the "Ltd", try the .co.uk. At scale that approach quietly fills your CRM with florists that share a name with software companies. Firmfeed marks a website confirmed or probable only when the site itself ties back to the register entry, and excludes mismatches and unverified guesses from the dataset entirely. That is the difference between a column that looks enriched and one your team can act on.
What a verified website unlocks: buying signals
- Google Analytics 4 and Meta ad pixels — the company is measuring or buying traffic.
- Ecommerce checkout — it transacts online.
- Live careers page — it is hiring, and hiring companies buy things.
- A 0–12 signal score — so the hottest prospects sort to the top of the file.
UK Digital & Marketing Agencies — Verified + Buying Signals. 1,596 established UK agencies, every row with a website verified against the Companies House record and at least one live buying signal. £99 one-off, no subscription.
Need websites on a different cut of companies?
The flagship dataset covers UK agencies and digital businesses. If your target is a different sector, region, company age or size band — or you already have a list of company numbers and just need the enrichment — the custom service applies the same verified-website and buying-signal pipeline to your criteria, delivered as a clean CSV within 48 hours at a fixed quoted price.
Custom dataset in 48 hours. Any SIC code, region, age or size band, with verified-website enrichment. Fixed prices from £149 — no sales call.
Frequently asked questions
Does Companies House data include company websites?
No. The official register holds what companies are legally required to file: name, company number, registered office address, SIC codes, incorporation date and filing history. There is no website field anywhere in the free bulk download, the REST API or the streaming API. If you need to know a company's website, you have to match it from somewhere else — that matching is the hard part.
Can't I just Google each company name to find its website?
For a handful of companies, yes. At list scale it breaks down: UK company names collide constantly (there are many unrelated businesses trading under near-identical names), registered names often differ from trading names, and a guessed domain that merely contains the company name is wrong surprisingly often. Verification means checking the site itself corroborates the registered company — company number, registered name or address appearing on the site — which is exactly the work Firmfeed automates.
How does Firmfeed verify a website actually belongs to the company?
We match candidate domains to the Companies House record and grade each match. A row is only marked confirmed or probable when evidence on the site itself ties it to the register entry — no guessed domains from name similarity alone. Datasets exclude mismatched and unverified candidates entirely, and every row carries its match confidence so you can filter to confirmed-only if you want.
What does a verified website let me do that raw register data doesn't?
Three things. First, it filters out the noise: a large share of registered companies are dormant, shells or holding vehicles with no trading presence, and requiring a working website removes most of them. Second, it gives you a research surface — a real site your team can qualify before reaching out. Third, it unlocks signals: once you know the site, you can observe analytics tags, ad pixels, ecommerce checkouts and live careers pages, which tell you who is actually spending on growth.
Is company-level data with websites safe to use under UK GDPR?
Company-level data — registered company fields plus the company's own public website URL — does not identify individuals the way scraped personal emails and phone numbers do, which keeps B2B prospecting use straightforward. Firmfeed sells company-level data only, deliberately: no scraped personal contacts, ever. You enrich contacts yourself in tools you already pay for, like Apollo or LinkedIn Sales Navigator.
Can I get websites matched to my own list of companies?
Yes — that is the custom service. Send us your target criteria (SIC codes, region, age, size band) or your own list of company numbers, and we return the same verified-website and buying-signal enrichment as a clean CSV within 48 hours, at a fixed quoted price from £149.